Fix SkTableColorFilter deserialization validation.

src/effects/SkTableColorFilter.cpp

 
 #include "SkBitmap.h"
 #include "SkTableColorFilter.h"
 #include "SkColorPriv.h"
 #include "SkReadBuffer.h"
 #include "SkWriteBuffer.h"
 #include "SkUnPreMultiply.h"
 #include "SkString.h"
 
 class SkTable_ColorFilter : public SkColorFilter {
@@ skipping 180 matching lines @@
     if (!buffer.validate(packedSize <= sizeof(packedStorage))) {
         return NULL;
     }
     if (!buffer.readByteArray(packedStorage, packedSize)) {
         return NULL;
     }
 
     uint8_t unpackedStorage[4*256];
     size_t unpackedSize = SkPackBits::Unpack8(packedStorage, packedSize, unpackedStorage);
     // now check that we got the size we expected
-    if (!buffer.validate(unpackedSize != count*256)) {
+    if (!buffer.validate(unpackedSize == count*256)) {
         return NULL;
     }
 
     const uint8_t* a = NULL;
     const uint8_t* r = NULL;
     const uint8_t* g = NULL;
     const uint8_t* b = NULL;
     const uint8_t* ptr = unpackedStorage;
 
     if (flags & kA_Flag) {
@@ skipping 258 matching lines @@
 SkColorFilter* SkTableColorFilter::CreateARGB(const uint8_t tableA[256],
                                               const uint8_t tableR[256],
                                               const uint8_t tableG[256],
                                               const uint8_t tableB[256]) {
     return SkNEW_ARGS(SkTable_ColorFilter, (tableA, tableR, tableG, tableB));
 }
 
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkTableColorFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkTable_ColorFilter)
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END